Vocabulary What does 根源 (こんげん, kongen) mean? 根源 (こんげん, kongen) means root; source; origin. Quick factsReadingこんげんRomajikongenPart of speechnoun 根源こんげんkongenroot; source; origin1noun root; source; originAlso written: 根原、根元Kanji in this word根root; origin源source, origin